Has anyone tried the CEB copper raptors in .277"

The light one is 90grains. Does anyone have any experience with this?

In a 270Win I figure that it would whiz at about 3600-3700fps. The BC is only .330 but at that velocity a 2" Point-Blank-Range is over 300 yards.

The 115gn looks interesting, too, with a .405BC. Probably an elk round.